# Repellent Pro — Sound Frequency & Speaker Test

> Ultrasonic sound emitter for repelling pests and dogs. (iPhone/iPad app by Batuhan Gundogdu.)

- Source: https://appshunter.io/ios/app/repellent-pro/id1150984934 (this page in markdown: same URL + `.md`)
- Developer: [Batuhan Gundogdu](https://appshunter.io/developer/1017938106)
- Category: Utilities
- Price: $0.99
- Rating: 1.00/5 from 6 App Store ratings · 22 written reviews indexed
- Age rating: 4+
- Requires: iOS 15.0 · 3 MB
- Languages: American English, Arabic, French (France), German (Germany), Italian, Japanese, Korean, European Portuguese, Russian, Chinese (Simplified, China) and 2 more
- Released: 2016-09-16
- Data updated: 2026-10-28
- Monetization: paid
- User reviews in markdown: https://appshunter.io/ios/app/repellent-pro/id1150984934/reviews.md

## What is Repellent Pro?

Repeller is a simple sound-frequency tool with four presets and a short, audible speaker test.

Features
• Four presets: 20, 21, 22 and 23 kHz.
• A one-second, low-level 1,000 Hz speaker test.
• Clear Start/Stop controls and a visible frequency display.
• Automatic light and dark themes, adaptive iPhone and iPad layouts, and VoiceOver labels.
• Available in 12 languages.

Choose a mode and tap Start. Changing modes or leaving the app stops the sound.

These mode names identify the existing frequency presets. Their effectiveness in repelling animals has not been verified. High-frequency output depends on the phone speaker.

Test speaker stops the current sound and plays a 1,000 Hz tone for one second. It uses the selected audio output, including connected headphones or Bluetooth devices. It does not verify high-frequency output.

Adjust the volume using your device’s volume buttons.

## Key features

- Ultrasonic sound emitter
- Repels mosquitoes, insects, rats, and dogs
- Four distinct sound frequencies
- Works in background mode
- Adjustable sound amplitude

## Is Repellent Pro safe?

Not enough ratings yet to assess Repellent Pro.

## Is Repellent Pro legit?

Repellent Pro appears to be a legitimate app. The AppsHunter Legitimacy Score for Repellent Pro is 90 out of 100 points across 7 verification signals from App Store and developer data.

## Recent user reviews (10 of 22)

All indexed reviews: https://appshunter.io/ios/app/repellent-pro/id1150984934/reviews.md

### 1/5 — 안되잖아 ㅡㅡ

*2026-09-27*

안됨

### 1/5 — App does not work , please refund my money

*2022-04-15*

Stood right in front of my dog , he licked the phone , now I’m having a hard time trying to find out how to cancel and get a refund.

### 1/5 — Non funziona

*2021-03-02, version 1.0*

Soldi rubati

### 1/5 — Çalışmıyor

*2020-08-14, version 1.0*

Yükledim ama hiç bir işe yaramadı. Para tuzagı.

### 1/5 — Non funziona  !!

*2020-04-30, version 1.0*

Non si capisce quando entra in funzione,
Soldi rubati !!

### 1/5 — Doesn’t tell you about cost

*2020-02-24*

No where do this say it costs money or has in-app purchase. I deleted it immediately and demand. Refund

### 1/5 — Non funziona inutile!

*2019-06-27, version 1.0*

Il mio cane non si gira neanche... figurati topi e resto... 1€ rubato

### 1/5 — 🐀

*2019-05-21, version 1.0*

Fare de işe yaramadı nolacak şimdi ödediğimiz para boşa mı gitti

### 1/5 — No funciona

*2019-05-06, version 1.0*

Descargué y pagué por la aplicación y no funciona. Es una estafa.

### 1/5 — No es verdad!

*2018-12-30, version 1.0*

La descargue y pague por la app que no anda. No pierda tiempo y Plata

## Frequently asked questions about Repellent Pro

### What is Repellent Pro?

Repellent Pro is a utility app that emits ultrasonic sound frequencies to deter pests like mosquitoes, insects, rats, and dogs. It offers four different sound modes and can operate in the background.

### How much does Repellent Pro cost?

Repellent Pro is a paid app, available for $0.99. It does not have in-app purchases or ads.

### What devices support Repellent Pro?

Repellent Pro is supported on iPhone, iPad, and iPod devices. It has an age rating of 4+.

### How often is Repellent Pro updated?

Repellent Pro was last updated on September 16, 2016, with version 1.0. The release date was also September 16, 2016.

### Can Repellent Pro guarantee 100% success?

No, the app cannot guarantee 100% success due to the variety of insects and mosquitoes. Users are encouraged to try all sounds and experiment with using different sounds for different pests.

### Does Repellent Pro work if I can't hear the sound?

Yes, Repellent Pro uses ultrasonic sounds with frequencies higher than the upper audible limit of human hearing (approximately 20 kHz). It is normal for humans not to hear these sounds.

### What should I do if Repellent Pro is not effective for my dog?

The app notes that some dog species have a high deafness ratio, in which case the tool will not be effective. It's also important to ensure sound is turned on, as it won't work in vibration mode.

### What are the user reviews for Repellent Pro?

Repellent Pro has a rating of 1.0 stars from 7 ratings. This indicates a very low user satisfaction based on available data.

## Version history (last 2 releases)

### 2.0 — 2026-10-27

A redesigned interface with light and dark themes, an improved tone generator, a one-second speaker test, adaptive layouts and 12-language support. Playback stops when changing modes or leaving the app.

### 1.0 — 2016-09-16

This app has been updated by Apple to display the Apple Watch app icon.

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## More apps by Batuhan Gundogdu

- [Instant Baby Sleep White Noise](https://appshunter.io/ios/app/instant-baby-sleep-white-noise/id1017938107)
- [Annoying Math Game](https://appshunter.io/ios/app/annoying-math-game/id1037716179)
- [iTesbih - Zikirmatik ve Tesbih](https://appshunter.io/ios/app/itesbih-zikirmatik-ve-tesbih/id1071381175)
- [Animal Sounds Machine](https://appshunter.io/ios/app/animal-sounds-machine/id1247259573)
- [Relaxer - Relax & Sleep Sound](https://appshunter.io/ios/app/relaxer-relax-and-sleep-sound/id1441287437)

All apps by Batuhan Gundogdu: https://appshunter.io/developer/1017938106

## Related topics

[repellent](https://appshunter.io/ios/topics/repellent) · [batuhan gundogdu](https://appshunter.io/ios/topics/batuhan-gundogdu) · [bug repellent](https://appshunter.io/ios/topics/bug-repellent) · [insect repellent](https://appshunter.io/ios/topics/insect-repellent) · [ultrasound rat repellent](https://appshunter.io/ios/topics/ultrasound-rat-repellent)

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*Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-10-28.*